ath9k_hw: Fix max rx rate drop for AR9565
Whenever i_coff of IQ calibration is too high, AR9565 drops max rx rate to MCS4. Skipping IQ update at this time can avoid this problem for AR9565. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -276,6 +276,11 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
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offset_array[i],
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REG_READ(ah, offset_array[i]));
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if (AR_SREV_9565(ah) &&
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(iCoff == 63 || qCoff == 63 ||
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iCoff == -63 || qCoff == -63))
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return;
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REG_RMW_FIELD(ah, offset_array[i],
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AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF,
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iCoff);
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